Specifies a channel process to handle a sftp subsystem.

COMMON DATA TYPES

channel_callback() = atom() - Name of the erlang module implementing the
subsystem using the ssh_channel behavior see
ssh_channel(3)

channel_init_args() = list() - The one given as argument to function
subsystem_spec/1.

Functions

subsystem_spec(Options) -> subsystem_spec()

Options = [{Option, Value}]

Should be used together with ssh:daemon/[1,2,3]

Options are:

{cwd, String}

Sets the initial current working directory for the
server.

{file_handler, CallbackModule}

Determines which module to call for communicating with
the file server. Default value is ssh_sftpd_file that uses the
file and filelib API:s to access the standard OTP file
server. This option may be used to plug in the use of
other file servers.

{max_files, Integer}

The default value is 0, which means that there is no upper limit.
If supplied, the number of filenames returned to the sftp client per READDIR
request, is limited to at most the given value.

{root, String}

Sets the sftp root directory. The user will then not be
able to see any files above this root. If for instance
the root is set to /tmp the user will see this
directory as / and if the user does cd /etc
the user will end up in /tmp/etc.